Home / 940,445.72-1,298,212.23-634,935.78

Finding the Fourth Proportional to 940,445.72, 1,298,212.23 and 634,935.78

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Solution

The fourth proportional to 940,445.72, 1,298,212.23 and 634,935.78 is: 876,479.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,445.72 : 1,298,212.23 = 634,935.78 : x
  2. Step 2: Convert to fraction form
    940,445.72/1,298,212.23 = 634,935.78/x
  3. Step 3: Cross multiply
    940,445.72x = 1,298,212.23 × 634,935.78
  4. Step 4: Simplify right side
    940,445.72x = 824,281,394,860.59
  5. Step 5: Solve for x
    x = 824,281,394,860.59/940,445.72
  6. Step 6: Final answer
    x = 876,479.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.